Improvement in pumps



UNITED STATES PATENT OEEICE.

KINGSTON GoDDAED, oE PHILADELPHIA, PENNSYLVANIA.

IMPROVEMENT IN PUMPS.

Specification forming part of Letters Patent No. 47,200, dated April 11, 1865.

To all whom it may concern:

Be it known that l, KINGSTON GODDAEI), of the city and county ofPhiladelphia, and Siate of Pennsylvania, have invented a new and useful Improvement in lPumps; and I do hereby declare that the following is a full, clear, and exact description of the construction and operation of the saine, reference being had to the annexed drawings, making a part of this specitication, in Which- Figure l is a perspective view, Fig. 2 is a longitudinal elevation, and Fig. 3 is a trans.- verse section, thereof.

In said drawings, A is the pump-tube, with its valve V, as ordinarily constructed. B is the piston-rod,to which is attached the piston whose seat S is occupied during its upward stroke by the gra'vitating ball-valve D, the said valve being raised, as shown in Fig. 2, when the piston is descending. The pistonrod is a hollow tube, and has initpertorations C C C, &c., which may be of any desired size and number. By means of these perforations the fluid which is being lifted ows freely from the :inside of the tubular pistonrod to the space included between the said rod and the pump-stock A, while the requisite rigidity of the rod is secured by its form and proportions, the extent of perforation being such as to unite the requisite strength inherent in the tubular form with sufcient lightness. The fluid raised is received from the upper orifice or head of the pump-stock by means of a spout or its overiiow, and the manner of the discharge, Anot being an essential feature of the invention, has not been shown in the drawings. The same remark applies as to the mode of v raising the piston, which is a matter that will be determined by the duty to be performed, the purpose, ca pacity, Snc.

I have shown a sketch of a handle with an orifice for a fulcrum-rod andthe handle piv-` oted to a post which is attached to the bridge on the upper end of the `tubular piston-rod. It is not desired to obtain the discharge from the upper end of the piston-rod, which isa common feature in pumps but the object of the invention is to obtain the practical mechanical advantages of` the tubular form in the economical use of material in combining strength with lightness, the latter quality bcing further developed by the perforations, while the direct effect of the said openings in causing a free flow of the` fluid is not a mere attendant circumstance, but a point I desire to secure.

Having thus described my invention, what I claim therein as new, and desire to secure by Letters Patent, is

The construction and arrangement ot the tubular and perforated piston-rod, substantially as described.

KINGSTON GODDARD.

Witnesses: i J. W. QUIGGLE GEO. G. THOMAS. 

